Warp-drawing machine.



Patented. May 20, 1913.

12 SHEETSSHEBT 1.

r w n rm H. D. COLMAN.

WARP DRAWING MACHINE.

APPLIOATION FILED MAY 1a, 1908.

Patented May 20, 1913.

12 SHEETS-SHBET 2 f Z/nwsw 146 91; 1&2 I

H. D. COLMAN. WARP DRAWING MACHINE.

APPLICATION FILED MAY 18, 1908.

1 2 271 0 Patented May 20, 1913.

12 SHEETSSHEET 3.

H. D. COLMAN.

WARP DRAWING MACHINE.

APPLICATION FILED MAY 18, 1908.

Patented May 20, 1913.

12 SHEETSSHEET 4.

[ruin/0 {filler/ 1 1? inegsas %ZV/Z%%W H. D. GOLMAN.

WARP DRAWING MACHINE.

APPLICATION FILED MAY 18, 1908. 1,062,271 Patented May 20, 1913.

12 SHEETS-SHEET 5.

iIHEIIIIIIHIIIH 4 M r c/lllormy.

H. D. GOLMAN.

WARP DRAWING MACHINE.

APPLICATION FILED MAY 1a, 1908.

Y1 Patented May 20, 1913.

1 2 SHEETS-SHEET e.

f6 Q5? Z5 Maw 141i (or am (Kilo/r524.

H. D. OOLMAN.

WARP DRAWING MACHINE.

I APPLICATION FILED MAY 18, 1908. 1,062,271 Patented May 20, 1913.

12 SHEETS-QEEBT 7.

" fiinesses I [/d il H. D. OOLMAN.

. WARP DRAWING MACHINE.

APPLICATION FILED MAY 18, 1908. D i gg g jl a v iatented May 20, .1913.

12 SHEETSSHEET 8.

ig/mix; Y L Jam J0)" H. D. UOLMAN. WARP DRAWING MACHINE.

APPLIGATION FILED MAY 16, 190 8.

Eatented May 20, 1913.

a mzm 12 SHEETS SHEET 9 H. D. COLMAN.

WARP DRAWING MACHINE.

APPLIOATION FILED MAY 18,1908.

Patented May 20, 1913.

mmmlim V 12 SHEETS-fiHEET 1o.

Wary?!- H. D. COLMAN. WARP DRAWING MACHINE. APPLIGATION FILED MAY 18,1908. 4 Patented May 20, 1913.

12 lZ74 12 SHEETS SHEET HOW I). GOLF-1 A 1.

, OF ROCKFORD, ILLINOIS, ASSIGNOR,

iii 1 FFIC.

BY MESNE ASSIGNMENTS,

T0 HOW D. COLMAN, LUTHER L. MILLER, AND HARRY A; SEVERSON, COPART- NERSDOING BUSINESS AT ROCKFORD, ILLINOIS, AS BARBER -COLMAN COMPANY.

WARP-DRAWING MACHINE Specification of Letters Patent.

PatentedMay 20, 1913.

provide mechanism for expeditiously and accurately selecting properheddlcs for determined warp threads, and for insuring the proper placingof the respective warp threads t rough the respective heddle eyes.

Another Ol)]8l) of the invention is to .provide means for throwing outcertain operating mechanism in the event that the proper heddle eyeisnot selected.

Another object of the invention is to provide means whereby theoperation of the eye puller for the heddles-will insure the operation ofthe heddle selector.

Another object of theinvention is to provide means whereby a certaintension will be placed upon the heddlesfat about the time the drawing-inneedle is to pass through the heddle eye with the thread.

Inthe drawings, Figure 1 is a side elevational view of a machineconstructed in ac cordance with my invention, parts being broken away toshorten the View, and the warp carriage and the beam truck beingomitted. Fig. 2 machine, the counter-balance weights for the harnessbeing removed. Fig. 2. is a detail perspective view of the two heddletension member 0 crating cams. Fig. 2" is a sectional View t rough theheddle tension member operating cams. Fig. 3 is a transverse sectionalview on the line 3 of Fig. 1. Fig. 4 is an enlarged transverse sectionalview through the warp carriage, harnesses, reed, twisting mechanism andsome of their cooperating parts. Fig. 5 is an enlarged view of theGeneva stop d'r' ing mechanism and the thread separatmgmechanism. Fig.(i is a detail side elevation of the separator is an end elevation ofthe showing the parts in their normal positions, to wit when theseparator has taken a thread. Fig. 6 is a detail view of the threadseparator and part of its associated mechanism. Fig. 6 is a detail viewillustrating the movable truck which carries the warp beam. Fig. 7 is adetail perspective View of the feeling mechanism to determine whether athread has been set off by the separator.

Fig. 8 is a fragmentary longitudinal vertical sectional view takenthrough the end of the machine, showing the mechanism for driving theheddle selectors, the mechanism for operating the sensitive feelerdevices for the heddles, the driving mechanism for the harness strandtightener and the throw out mechanism operated by the heddles. Fig. 9 isa view similar to Fig. 8 but showing the knee, which carries the heddleselector opcrating cams and strand tightener cams, lowered to permittheheddles to be removed from their supporting bars. Fig. 10 is a sideview, partly in section, showing the support for the harness bars at thehead end of themachine. Fig. 10 is a detail perspective view of the dogfor locking the harness bars in place. *Fig. 11 is a face view of thesupport shown in Fig. 10. Figs. 12 and 13-are end views of the Genevastop motion, showing the parts in two different positions during theirnormal movements. Fig. 14 is a detail view, partly in section and partlybroken away, showing the heddle selector and sensitive stop finger. Fig.15 is a side .view of the harness bars withseveral harness strandsthereon, the heddle selecting mechanism being shown as engaging some ofthe'heddles. Fig. 15*-is a cross-sectional view through one of theharness bars and the eye puller actuators cooperatingthere. with. Fig/16is a detail in perspective showing the means for actuatingthe heddleselect-or. Fig. 16 is a detail perspective view of one of the selectorholder plates. Fig. IT is a transverse sectional view through one of theheddle'selectors. Figs. 18 and 19 are 'side and end views, respectively.of the reed feeder and dent separator and the thread-twister for the dawn-in ends. Figs. 19, 19'', 19 and 19 are detail views of said threadtwister. Fig. QO'is a perspective view of the reed feeder and dent soarator showing its relation to the reed. Fig. 20 is a fragmental view ofone of the lower harness bars. Fig. 21 is an enlarged view of theselector for the warp threads and some of its associated mechanism. Fig

'The shaft 6 may receive motion from any suitable source, in drivingconnection with the pulley 7, fast on the shaft, a loose pulley 7 beingalso carried by said shaft 6. The rails .8 and 9 are supported upon thebed 1 by the brackets 10 (see Figs. 1 and 4). These rails 8 and 9 areadapted to. receive a Warp carriage 11 movable thereon so as to presentsuccessive threads to the selector mechanism preparatory to being drawnin. The carriage is provided with spaced warp clamps 12 and 13 so thatthe warp threads. 14 may be held therebetween and deflected from astraight line by the longitudinally movable ribbon 15, said ribbon beingadapted to be shifted by any suitable means.

By reference to Fig. 4 it will be observed that the warp clamps mayinclude the removable insertion bars. 16 introduced between theresiliently. lined, clamping members 17 whereby the threads will be heldagainst slipping or pulling loose from the clamps. One of the clamps (inthis instance 12) may swing with relation to the other to stretch thethreads. The swinging clamp 12 is pivoted at 18, to the carriage 11 andafter the warp is secured to said clamps the one designated 12 may bemoved away from its' complementary member 13 byactuating the rock shaft19 eccentrically connected to the link 20 which engages the arm 21connected to the pivot 18 of said clamp 12. The shaft 19 may be actuatedby the'lever 22 (see Fig. 4). The carriage 11 may be moved along therails 8 and 9 by a rack and pinion 23, 24, the pinion being driven bysuitable mechanism to be described hereinafter.

As will appear to those familiar with warp-drawing machines, the warpbeam may be fed with the warp carriage 11 from the head toward the footof the machine. In order to accomplish the feed ofthe warp beamconcurrently with the warp' carriage, the beam may be supported in atruck T provided with a threaded portion or half nut T (Fig. 6") toengage the screw F (Fig.

1) so that the truck will be progressively fed during the drawing-inprocess. The screw F may be driven through the pulley 6 around which abelt may pass to the pulley F supported by shaft F in the bracket F andin hearings in one standard 2, the shaft F carrying a gear to mesh withthe gear F on the shaft F.

Suitable mechanism is provided for se lecting, severing and placing warpthreads through the eyes of a cotton harness, and

. be accomplished will be apparent by reference to the remainingportions of this description and reference to the accompanying drawings.

Each harness is supported upon two bars 'which I designate respectivelythe upper These bars 25 and 26 are supported in the machine inapeculiarly novel manner so as to expedite the application of theharnesses to and the removal thereof from the same. The bar-supportingstandard 27 at the head end of the machine is vertically adjustable on adovetail rib 28 whereby the standard may be movedbelow the plane of thebars either supporting or non-supporting position the said standard 27may be held in its determined adjustment by a set screw or pin 29 (seeFig. 10). The upward movement of the standard may be limited by the twostop pins 30 and 31, one in the machine base and the other in thestandard. The preferred construction of the standard 27 may best beunderstood by reference to Figs. 10 and 11. I-n'Fig. 1'0 the standard isshown with shouldered recesses 33 to receive the ends of the bars 26 anda forked end to provide slots 34 and 34 to enable the ends of the-topharness bars 25 to pass through and engage the forked end of the.section 32.

35 are pins upon the fork 32 adapted to enter sockets 35*. (F ig. 15) inthe harness bars for properly positioning said bars upon their supports.

The lower ends of the upper bars 25 are recessed at 25 (Figs. 10 and15). The standard 27, or, to be exact, the section 32 of the standardcarries a spring-pressed dog 36 which has an upper T-head; this dogbeing provided for the purpose of engaging the notches 25 inthe'respective top harness bars so as to hold them against accidentaldisplacement. The dog 36 may be operated by the hand wheel 37. The adacent ends of the lower bars 26 are notched, as at 26", to receiveprojections 36 'upon the dog 36 for holding said bars againstdisplacement, as will appear more fully hereinafter The opposite. endsof'the bars 26 are supported by a standard'3S (Figs. 8 and 9) having aslot {herein for each of said bars 26. each '.a'r resting upon the endwall 38 of its slot. The adjacent ends of the bars 25 rest upon from themain shaft 6.

the means whereby the desired result may harness bar 25 and the lowerharness bar 26;

26 and out of bar Supporting position. In

.as being sectional. The fork 32 is provided.

a standard 39 and extend through the slots 38 in the standard 38. Uponthe standard 39 are positioning pins 39 adapted to enter recesses 39 inthe lower edges of the bars 25. The standards 38 and 39 are carried bythe vertically adjustable knee 4O slidable upon a dovetail rib 41 on thefoot end of the machine and adapted to be held in its adjustableposition by the pin or set screw carries certain heddle selector andstrand placer operating mechanism, but this will -be describedhereinafter.

The harness shafts are shown as consist ing of two movable bars 46 and47 having rollers on their ends to pass over the top edges of the topbars 25 and the lower edges of the bottom bars 26 (see Fig. 1). In orderto move the harnesses through the machine and past the operatingmechanism (to be described later) I provide a gravity feed comprisingcords 48 and 49, each having one end connected to its harness or shaftand the other to the knee 40. These cords 48 and 49 support a weight 50which will be sufficient to pull the harnesses along the bars 25 and 26.In actual practice I find that it is sometimes desirable to have theupper harness shaft move slightly in advance of the lower harness shaft,and this can be effected by shortening up the cord 48 with respect tothe cord 49. After the proper adjustment is made, the relative positionsof the upper ends of the heddles'with respect to the lower ends thereofwill remain the same. The harnesses are passed on to the head ends ofthe bars 25 and 26 pres paratory to the drawing-in operation and theyare removed from the foot ends of said bars after. the drawing'in hasbeen effected.

When either the standard 27 or the stand-' ards 38 and 39am to bewithdrawn as supports for the bars 25 and 26, either to introduce theharnesses onto the bars or to removethem therefrom, I find it desirableto provide a temporary support for said bars, and one is shown in Figs.1, 3 and 9. Preparatory to removing the standard 27 or its fellows, Imove the auxiliary support Z (which is carried by the base 1) up intosupporting position so that the forked end 5L. receives the lower bar 26on the floor Y of the slots in the forked end, and the upper bar issupported by a pin 52 (Fig. 9) passing through openings in the said endand abovethe bar 26,- The auxiliary support Z may be held in itsadjusted position by the fastening device 53 which passes through a partof the base 1 and engages the member Z. Vhen the knee 40 is lowered andthe harness bars 25 and 26 are being supported by the standard 27 andthe support Z, the dog 36 prevents the bars 25 and'26 from tilting underthe weight of the harnesses carried on the foot end of said bars 25.

The bars 25 and 26 carry certain mechanism for selecting, positioning oreye pulling and tightening the harness strands, and these will now beexplained. The harness strand selecting and positioning or eye pullingmeans, the sensitive feeler means and the drawing-in needle Work inunison, that is, one operates with respect to another.

For convenience, I permit the mechanism for each harness, referred to inthe preceding paragraph, to be carried by one of the harness bars, inthis instance, the lower bars 26. i y

The eye pulling or-positioning device for each harness is shown asconsisting of a pair of disks D and D (Figs. 17 and 22) provided withperipheral fingers D arranged in circular series and adapted tosuccessively engage successive strands of the harness. Each finger has along edge'and a short edge. At the juncture of the long edge of onefinger with the short edge of an ad acent one, is an approximatelyV-shape kerf or notch 54 forthe reception of one of the harness strandsat the lower end of an eye, The adjacent notches; (for there arecorresponding ones in each disk) are cut on the same angle, so those inthe disk D are in angular alinement with those in disk D. The long edgeof each finger is provided with a socket notch 55 for the reception ofan actuating device shown as a pawl 55 receiving an intermittent motionby a reciproeatory rod 56h) which movement is imparted by suitable meansto be referred to later on. It will be understood that a thread is to bedrawn through an eye of one harness and the next thread to be placedthrough an eye ofthe other harness. The eye-selector and puller devicesare therefore actuated alternately.

57 are guide notches interposed, one between the base of each fin er andits free extremity. The purpose 0 the notches 57 is to guide oraccommodate the drawingin needle in movin past the eye puller device forone of theiarnesses when a'thread is to be placed in the eye of a heddleheld by the eye puller device of the other harness. The step by stepmovements of the two eyepuller devices first bring a notch 54 in therear puller device and a notch 57 in the front puller device intooperative alinement for the passage of theneedle, and then a notch 54 inthe front puller device and a the selector support.

notch 57 in the rear puller device are operatively alined.

As will be apparent by referenceto Figs. 16 and 17, the disks carryingthe heddle-engaging-fingers are spaced apart by a sleeve 58 on one ofthedisks and which is'doweled into the other disk so that said''-- disksrotate together. The disks are then fastened together by a pin 58carried by one disk and which passes through sleeve 58 to receive a nutor other fastening device 58 The inner face of each disk is recessed; inthe edge of each recess are teeth 59 meshing with the teeth of a pinion59 loosefin Said support comprises two disks 60 having central bearingopenings to receive and rotatably' support the sleeve 58, said disksbeing secured to a web 26 of thebar 26 by means of screws 60. Theoutline of the web 26 is indicated in Figs. 14 and 20 Integral with orotherwise fixed to the disks 60 are disks 60", the parts 60 and 60 beingsecured together by a dowel pin 60 and a screw 60, as well as by thescrews 60*.

The selector 61 is here shown as ringshape, being provided with internalteeth 62 meshing with the teeth of the pinion 59 which in turn is ingear with the internal teeth 59 in the disk recesses. By reference toFig. 16 it will be apparent that the selector support may be sectional,as herein described, in order to get the ring selector intooperativeposition with respect to the pinion, eye puller disks, etc. Theintermittent movement s imparted to the eye-puller disks Dand D" by-thepawls 55 are communicated to the selector 61 through the gear train 5959, 62. a

Theexterior of each selector 61 is provided with strand-engaging notches62 (Figs. 16 and 22), each alternate one being cut at a different anglethan the preceding are alternately inclined at angles of about- 60degrees. The object of this'arrangement is to insure the selection ofthe proper harness strand. A harness is ordinarily arranged on itsshafts to providewhat is known as a forward and a rear heddle, and inthe drawing-in process it is desirable to place a thread through first afront heddle eye and then a rear heddle eye. As the harnesses are leasedbetween the bars 25 and 26 (Fig. 23), one of the lower strands of eachforward heddle crosses to the rear side, and one of the lower strands ofeach rear heddle crosses to the forward side. These crossing strands arethe, ones engaged by the selector 61. The crossing strands of theforward heddles are of course disposed at a different angle from theangle of the crossing strands of the rear heddles; so, if the selectorpicks up a forward heddle in the beginning of the operation of the maThe notches in the present nstance chine, the next succeeding notch inthe selector will pass by a strand of a forward heddle, should one bearagainst it, and fail to select it, but just as soon as a rear heddlepresses against the periphery of the selector,--the notch inclined topick it up will insure its selection. Thus, first a front heddle andthen a rear heddle will be selected and this order will be followedthroughout the drawing-in process. It will be understood that the heddlestrands stand in front of the selector 61, that they are under sometension by reason of the weight of the harness shaft 47, and that theweight 50 holds the strands against the selector 61. The latter catchessaid strands in its notches 62 and carries them to a point within reachof the puller fingersD The weight 50 with-its coiiperating cords furnisha gravity feed for the harnesses and this, gravity feed is controlled bythe eye puller and positioner, which together with the selector willpermit only one heddle to pass at a time and that at determinedintervals, although these intervals will be very frequent.

The bars 25 and 26 are provided with guides 72 and 73 (see Fig. 15) inthe form of ribs or projections, these being provided to properlypresent the crossing heddle strands to the selector preparatory to beingtaken by'the' eye pullers. In the top edge of the bars 26 are certainheddle feeler devices, one for each bar, and these feeler devices arearranged so that should the eye puller fail to pass an eye along at theproper time, the machine Wlll be thrown out of gear. v

The sensitive feeler may comprise a finger or dog 64 (Fig. 14) pivotedat 65 to the lower harness bar and capable of having its toe vibratebetween the eye puller disks D and D. The heel of the feeler is providedwith an interlocking projection 66 and a contact projection 67. Slidablelongitudinally in each bar 26 is a rod 68 having at one end (see Fig.15) a projection 69 for interlocking engagement with the projection 66.The rod 68 is also provided with a cam projection 70 to cont-act withthe projecti on 67 so as to force the toe of the feeler down against theactionof the compression spring 71 which has a normal tendency toelevate said toe. In the normal operation of the machine the toe of thefeeler 64 is held down by the positioned heddle eyes. As each eye passesalong after being provided with a warp thread the spring 71 tends totilt the feeler intothe dotted-line position shown in Fig. 14, but suchtilting is prevented, during the slight interval between successive.eyes, by the projection. 70 which is brought into contact or-intoposition to contact with the projection 67 in the reciprocations of therod 68.

74 (see Fig. 15) designates i'a .heddle tightener, of which there aretwo for each harness. In the present machine provision is made for four.Each heddle tightener is shown as pivotedat 74 to a top bar 25 and s isprovided at its lower end with a rigid elbow extension 75 having an"irregularslot 7 6 therein to receive a pin 77 of an actuator. Theactuatorpreferably consists of a bar 78 in which the pin 77 is fixed.

80 are springs connected to the bar 78 and.

a pin 80 fixed in the arm 75, whereby a yielding connection is providedbetween the tightener and its actuator. I prefer to employ a pluralityof small springs instead of one large spring because the small springsmay be convenientlyconfined in a comparativelysmall space and they willbe quite as effective as one'large one. By reason of the springs 80 andthe irregular opening 76 the lever 75 is permitted to have a limitedmovement with respect to the bar 78 so that provisionavill be made toprevent severe strains upon the harness strands due to variations in thelength of the heddles, particularly at the limit of the upper movementof the tightener. The tightener 74 acts upon one heddle at a time.During the downward movement of the tightener the projection 80 betweenthe ends thereof will be caused to enter the recess 81 in its supportingbar, whereby the tightener will lie flat against said bar 25 to permitthe proper heddle to pass over the end andon the outside of thetightener. By the time said heddle is well over the end of the tightenerthe actuation thereof by the slide bar 78 will-cause the pin orprojection 80 to pass out the recess 81, in doing which it will ride upthe inclined edge 82 of said recess and move the free end of saidtightener away from the bar 25 so 'as to cause it to pass on the outsideof and clear the adjacentstrands, and place tension upon the positionedheddle. When the heddle is thus placed under tension and drawn into anapproximately straight line, with the lower strands straddling thepuller disks D D, the eye is in proper position for the passage of thedrawing-in needle.

I shall vnow proceed to describe themeans for imparting the desiredmovements to the eye selectors and pullers, the sensitive feelers andthe heddle-strand tighteners. As heretofore mentioned, the shaft 6 mayvreceive motion from a suitable source of power through the medium of abelt passin over the pulley 7, but when the belt is shi ted to the loosepulley 7 the belt merely runs idle. If the shaft 6 is being driven,motion may be imparted to the shaft 83 by a Geneva sto motion comprisingthe sliding disk 84 (F 1g. 1) splined on the shaft-6, which disk has apin 85 (Figs. 12 and 13) adapted to enter one of the four radial slots86 in a disk the left-hand side of the'stop wheel 87 when,

the pin disk 84 is shifted as before mentioned. Certain mechanism isprovided for automatically disconnecting the disks 84 and 87, but thiswill be referred to hereinafter. When the shaft 6 is in drivingengagement with the driven shaft 83 through the Geneva stop motion, thevertical shaft S will be driven through the bevel gears S and S one onthe vertical shaft and one on the shaft 83. The mechanism actuated bythe shaft S is carried by the knee 40 and inasmuch as theknee isvertically adjustable, the shaft S must have a spline connection withthe particular gear 93 (Fig. 2) which it drives. The knee 40 carries twovertical posts 88 and 89 (Figs. 2, 8 and 9) in which are journaledshafts 90 and 91 carryin ,the cams for assisting in the actuation o theselectors, the eye pullers, the sensitive feelers and the heddletighteners. The shaft 90 is provided at one end with a bevel gear 92meshing with a bevel gear 93 splined on the shaft S and held in abearing 94 in the bracket 95 carried by the post 88. These gears 92 and93 will remain in mesh irrespective of the position of the knee 40.

Sleeved on the shaft 90 are two geared cams 96 and 97 (Fig. 2"). Thesecams are normally made fast with the rotary shaft 90 by I thespring-actuated dogs 98 (Figs. 1 and 2) which are carried by the knurleddisks 99 and 99 fast on the cam sleeves. The dogs 98 are adapted toenter openings in the shaft 90 and they are adapted tobe withdrawn so asto turn either or both cams independently of said shaft. The teeth onthe cams 96 and 97 are in mesh with the teeth on the cams 100 and 101(Fig. 8) fixed upon the shaft91, so that when motion is imparted to thecams 96 and 97 those desi ated by 100 and 101 will likewise be movedlThe cams 100 and 101 are provided with approximately 8-shape grooves 102for the reception of the pins 103 of the yoke-links 104 so that areciprocating motion may be given to said links. The two cam grooves ofeach cam are arranged 180 apart, so that the two yoke-links ofeach camare reciprocated in opposite directions. the yoke-links of each cam 100101 is sepa rably connected by means of a pin 105 with a notched member106 fixed to both of the selector bars 56 of the corresponding bar- Oneof I ness bar 26. The other yoke-link of each cam is separably connectedwith the feeler rod 68 through a rocking lever 107 which pivotedintermediate its ends to said yoke-link and engages a recess in theendof said feeler rod. The lower end of the rocking lever 107 isbifurcated to engage an; arm of a bell crank lever 108 fulcrumed at 109on the standard 38, but normally held rigidly against a stop 108" by thesprlng 109 connected to one arm of the lever 108 and to a suitable partof the knee 40. v

There are two bars 56 for each harness, one oneach side of each harnessbar 26; those for each harnesswork in unison, both being connected tothe member 106, so in effect the duplicate bars 56 for each harness actas one bar, imparting the desired movements to the eye puller from bothsides of the bar 26.

The sensitively-controlled feeler rod 68 will be actuated every time theeye puller operates (see Fig. 15). When the sensltive feeler rod iscaused to move toward the eye puller, the dog 64 will be out of contactwith the cam projection 70, and provided a heddle has been selected andis holding the toe of'the dog in the position shown in Flg. 15, the rod68 will be permitted to move away from the eye puller. If, however, noheddle is fed along the bars 25 and 26 the compression spring 71 willdepress the heel end of the dog, causing its interlocking projection 66to interlock with its complementary one 69 on the rod 68 so said rod 68cannot move. (See Fig. 14.) When the rod 68 looks against movement thefulcrum for the'lever 107 changes to the end in en-- gagement with therod 68 (Fig. 8), the tension spring 109 is overcome and the bell cranklever 108 is rocked on its bearing. Asa result, a verticallyreciprocatory movement is given to the rod 110 which normally rests in arecess in the horizontal arm of said bell crank (see Figs. 2 and 8).

110 is a stationary guide bracket having an opening therein throughwhich the lower end of the rod 110 passes, This rod 110 moves a dog 111(carried by a yielding lever 112 on the shaft 6) into engagement withthe notch 113 in the disk 114 on the shaft 6. As the disk 114 rotates,the lever 112 will be'moved against theaction of the spring 115 until aprojection 116 on said lever tilts a lever 117 out .of a notch 118 inthe spring actuated longitudinally-shiftable rod 119, so that thespring120 will move the rod 119 in .its supports and cause the belt fork orshifter 121 to shift the belt from the fixed pulley 7 to the loosepulley 7, in which event the machine Will stop. The belt may be shiftedback upon the drive .pulley 7 by the hand lever 122.

112 (Fig. 2) is a fixed stop against which the lever 112 isnormally'held by the spring 115. The cams96 and 97 are providedwith camgrooves 123, one on each face of each cam disk. The operating part ofeach groove is set at an angle of 90 to another,

-and these cams are so arranged that first the strand tightener on oneside of a harness bar will be raised, then one on the other bar, thenone on the first mentioned bar and then one on the second mentioned bar.Thus there will be four tighteners each one actuatedpnce during onecomplete rotation of the main drive shaft.

The earns 96 and 97 are connected up with the yokes 124 whose pins125follow the paths of the grooves 123 in the cams so as to impart'theproper movement to the tightener bars. The ends of the yokes 124 areprovided with pins 126 which loosely engage the notches 127 in the endsof the bars 78 so that the yokes 124 and the bars 78 may readily becomedisconnected when the knee 40 is dropped.

If it is desired to rotate the cams 96 and 97 independently of the shaft90 in order to move the selector back to cause it to take a heddle,should it miss one, or for any other cause, either or both cams may betemporarily disconnected from the shaft with which they are normallyfast by withdrawing the dogs 98. When the harnesses are to be removedafter the drawing-in operation has been completed, the knee will bedropped and the mechanism carried by the posts 88 and 89 will assume theposition shown in Fig. 9.

Certain mechanism is provided by means of which the warp threads may beselected and placed through the heddle eyes and the dents of the reed.This mechanism can best be appreciated by reference to Figs. 1, 3, 4, .6and 21.

The thread-selecting mechanism will next be described. The selectorproper consists of a small tapered rod 128 (Fig. 21) provided with aminute hook or barb near its forward end of a size suitable to hook orspear one of the warp threads upon which the machine is being operated.Said selector is arranged to be reciprocated across the plane of thewarp at a point close to the deflecting ribbon 15, a spring 129 (Fig. 3)yieldingly moving said selector toward the foremost thread of the warp.When the selector lifts the thread from the ribbon 15, said threadsprings into a straight line between the clam s 12 and 13, thus movingaway from the ody of the warp. The selector is mounted in the forwardend of an arm 129 pivotally mounted in the bracket 130. The arm 129 isrocked by means of an eccentric 131 (Fig. 6) upon a shaft 132, and'aneccentric rod 133. The shaft 132 is driven from the drive shaft 6through the intermeshing bevel gears 133 (see Fig. 3). A cam finger 134(Fig. 6') fixed to the noeaev bracket 130 engages the curved rear end ofthe member 135 in which the selector 128 is fixed and moves the upperend of the selector away from the warp after said se-.

r is fixed a shear blade 158 adapted to coact The warp carriage 11 ismoved upon the.

lector has engaged a thread.

rails 8 and 9 by means of a pinion 24 (Fig. 4) fixed upon a shaft 23*(Fig. 6), said shaft being mounted in the bracket .130 which comprises abrace 130 and said pinion engaging a rack bar 23 fixed to the carriage.Upon the shaft 23 is fixed a ratchet wheel 136 (Fig. 4) the teethofwhich are adapted to be engaged by a pawl 137 carried by an arm 138pivotally mounted upon said shaft. Upon the upward movement of the arm129 a finger 139 (Fig. 21) rigidly attached thereto engages a lug 139 onthe hub of the arm 138 and moves said arm to give the pawl 137 a feedmovement. A spring 140 restores said arm and said pawl upon the downwardmovement of the arm 129. In order that the warp carriage may not movethrough momentum, I provide a brake for the shaft 23 comprising a band.141 encircling a brake disk 142 fixed on said shaft. The band 141 isheld from rotation by means of a pin 143 engaging lugs 144 on said band.A screw 145 provides means for regulating the pressure of the band 141upon the brake disk 142.

' The feed for the warp carriage 11 is sensitively controlled, thecarriage being moved only as fast as the necessities of the workrequire. When warp threads are in position to be engaged by the selector128 the feed of the warp carriage is suspended by means of a bell-cranklever 146 pivotally mounted at 147, one end of the upwardlyextending armof said lever lying in the plane of'the warp threads. A spring 148 tendsto move said lever arm into contact with the warp threads. When warpthreads are present at the selector mechanism the end of the horizontalarm 1490f said bellcrank lever lies in position to prevent a restoringmovement of the pawl 137. When threads are absent from the selectingpoint,

the spring 148 rocks the bell-crank lever to withdraw said horizontalarm from engagement with said pawl, and the carriage is fed along untila thread. is in position to be taken by the selector 128. p

The selected thread is separated from the body of the Warp by .meansshown .as a curved plate 150 fixed to arms 151, said arms being securedto a shaft 152 pivotally mounted in an arm 153. The operating edge ofthe plate 150 is inclined at an angle of about 30 with said shaft. Atits point end it is provided. with a separator finger 154 (Fig. 6). Theplate 150 is oscillated by means of a crank 155 (Fig. 4) fixed at theforward end of the shaft 152, which crank is connected by a connectingrod 156 with a crank arm 157 fixed upon the shaft 132 (Figs. 3 and 6).To the side of the separa-. tor plate 150 opposite to the finger 154 andat one end of its inclined separating edge' with a stationary shearblade 159 fixed to the arm 153. As the separator plate 150 is oscillatedthe finger 154 enters between the selected thread and the body of warpthreads, and the plate, following said finger, separates the selectedthread from the adjacent threads substantially throughout its lengthbetween the clamps 12 and 13. When the operating edge of the plate 150has passed the selected thread the latter has been raised from the bodyof warp threads so that it is out between the two shear blades 158 and159 as'they come together. To clamp the thread before it is severed, inorder that it shall not jump or become slack at the point end of theseparator plate, I provide an arm 160 pivotally mounted upon the shaft152 and arranged to clamp thethread between itself and the outer end ofthe forward one of a number of stationary fingers 161 (Fig. 7). A block160 fixed to the arm 160 and having an inclined face raises the selectedthread into proper position for clamping, if it has not already been soraised by the separator plate. A spring 162 (Fig. 5) tends to move thearm 160 into-clamping cont-act with said finger, and a pin 163 fixed inone of the arms 151 withdraws the arm 160 upon the return movement ofthe separator plate.

Should the selector fail to take a thread, it is desirable to stop theheddle-handling mechanism while the selector mechanism continues toendeavor to take a thread. It will be seen that the heddle-handlingmechanism is driven from the shaft 83, while the warp carriage and thewarp-thread selecting and separating mechanisms are driven from thedrive shaft 6. In order, therefore, to suspend the action of theheddle-han'dling mechanism I provide means for breaking the operativeconnection between the shafts 6 and 83, said means being automaticallyoperated upon the'failure of the selector to take a thread. Thismechanism will now be described.

The stationary fingers 161 (Figs. 6 and 7) are located near the pointend of the separator plate 150 and are formed on the are of a circle topermit said plate to be oscillated beneath them. A fork 164 is ivotallymounted upon the shaft 152, the hues of said fork being adapted to enterbetween the fingers 161, which a spring 165 causes them to do when nothread extends across the ends of said fingers. The pin 163 swings thefork 164 rea rwardly at each return movement of the plate 150. The upperend of the fork 164 is in the form of a rest 166, the upper end of saidrest being curved on the are of a circle concentric with the center ofthe shaft 152. A disk 167 is fixed upon said shaft, and has a notch 168therein adapted to be engaged by a pawl 169 pivotally mounted on an arm170, the latter being loosely mounted on the shaft 152. A pin 171(Fig. 1) projects rearwardly from said pawl and normally lies upon therest 166, by which means the pawl is held out of the notch 168. A spring172 tends to move the pawl in one direction. When a thread has beenselected, said thread lies in front of the fingers 161 and prevents thefork 154 from entering between said fingers. When the selector fails totake a thread the tines of the fork 16 1 are drawn by the spring 165between the fingers 161, withdrawing the rest 166 from beneath the pin171 and permitting the pawl 169 to enter the notch 168. \Vhen the returnmovement of the separator plate 150 begins the arm 170 is rockeddownwardly, said arm being connected with a crank arm 173 by means ofthe connecting rod 174. The crank arm 173 is fixed to a shaft 174carrying a fork 173 connected with a ring 84 rotatably mounted on thehub of the pin. disk 84-. The downward movement just described of thearm 170 therefore shifts the pin disk 84 longitudinally of the driveshaft 6 to withdraw the pin 85 out of the vertical plane of the starwheel 87, and to engage the hub 84* of said pin disk with the .stOpwheel 87*. When the separator plate 150 has nearly completed its returnmovement, a pin 175 on. the connecting rod 174 engages the rear end ofthe pawl 169 and lifts the forward end-thereof out of the notch 168 inorder that the rest 166 may be placed beneath the pin 171 during theremainder of the return movement of the separator plate 150. As soon asthe pawl 169 is disengaged from the notch 168, a spring 176 raises thearm 170 and the pawl 169 slightly, the leaf 84 on the'hub of the pindisk 84 preventing disengagement of said hub and the stop wheel 87 untilthe pin 85 has passed the slots'86 inthe star wheel 87, when therotation of the leaf 84" out of contact with the stop wheel 87 permitsthe spring 176 to return the pin disk 84 into operative relation withthe star wheel 87. If upon the next forward movement of the separator150 and the fork 154 the latter is stopped b a selected thread, the rest166 remainsun er the pin 171 and the heddlehandling mechanism will beactuated when the pin 85 engages the star wheel 87. If the fork 154 isnot so stop ed, the pin disk 84 is shifted away from tiie star wheel 87upon the next return movement of the separator and before the pin 85engages in a slot 86.

The reed c is arranged to travel longitudinally of the bed 1 upon achannel track 177 vertically-adjustably mounted upon the posts orbrackets 4 (Figs. 1, 4 and 6). Any suitable means may be employed foradjustably mounting the channel track 177. That herein shown consists ofwedging blocks "177 fixed to the track and resting upon pins 177 fixedin said posts. The blocks 17 7 a are fixed to the posts by means ofbolts 177 extending through inclined elongated openings 177 in theposts. The reed is fed through the machine and its dents spread for thepassage of the drawing-in needle by a reed opener and feeder 178 (Figs.18, 19 and 20) having a split flange 179 upon its periphery. The splitends of the'fiange are made thin so as to enter and leave the reedeasily. The reed feeder and opener is sup ported in the machine framewith its split flange in position to engage the dents of the reed, andis rotated by the shaft 180 through the intermeshing bevel gears 181 and182, a spur gear 183 secured to the bevel gear 182, an intermediate gear184 and a pinion 185 fixed to the reed feeder and opener. The shaft 180is provided with a pinion 180 meshing with a pinion 180 on the shaft 83.The gear train described gives the reed feeder and opener a successionof half-revo' lutions. In the present embodiment two threads are to bedrawn between each two adjacent dents in the reed. Referring to Fig. 4the reed opener and feeder is there shown stationary. The next halfrevolution of said device feeds the reed the distance of one dent andspreads the dents for the next forward movement of the needle. The nexthalf revolution does not feed the reed but merely holds the same dentsspread for the second forward movement of the needle. The succeedinghalf revolution feeds and spreads the reed as before described. The reedis held in an upright position by means of stationary members 186.

The needle 188 is secured in an arm 189 fixed to a shaft 190 supportedin bearings upon the bed platel. At the opposite end of said shaft is acrank arm 191 (Fig. 3) which is connected with an eccentric 192 upon theshaft 6 by means of a connecting rod 193. The needle 188, which isformed on the arc of a circle generated from the center of the shaft190, has a notch 19-1 formed in its top near its forward end, whichnotch is in such a position and of such form thatwhen the needle is inits foremost position, the selected warp thread is moved into said notchby the thread-separating mechanism hereinbefore described, When the reedfeeder and opener 178 has spread apart two dents of the reed, theneedle'188 is projected through the reed and through the proper threadeye of a heddle. Upon its'return movement, the needle 188 draws saidthread through the heddle and the reed and through a twisting device tobe next described.

